228 
Mycologia • 
C. scandens (Schrad.) Scribn. {S. scandens Schrad.) collected 
by Brisbane in Jamaica, Oct., 1896. Both the host of the latter 
specimen and that of the type of Mayor’s Uredo Cameliae have 
been examined by Prof. A. S. Hitchcock, and the two pronounced 
identical. 
Mayor’s type collection was made at Camelia, a coffee planta- 
tion near Angelopolis, U. S. of Colombia. It has been possible, 
through the kindness of Prof. E. W. D. Holway, to examine 
some of the type collection. Most unexpectedly an abundance of 
telia were found, although they have not been mentioned by the 
author of the species. It is possible that they were overlooked, 
because they form small, inconspicuous sori, with spores so 
firmly pressed together, that the usual method of examination 
by scraping generally fails to discover them. They need to be 
studied by sectioning the leaf. 
It is possible from type material to supplyl the following 
diagnosis : 
Uredinia amphigenous, scattered, elliptical, small, 0.5 mm. long, 
rather tardily naked, cinnamon-brown ; urediniospores ellipsoid, 
15-21 by 19-28/*; wall pale yellow to nearly colorless, thin, 
about I fjL , closely and very finely echinulate, the pores obscure, 
6-8, scattered. 
Telia amphigenous, scattered, oblong or linear, 0.3-0.5 mm. 
long, blackish brown, long covered by the epidermis ; teliospores 
firmly compacted together, oblong to cylindrical, small, 10-16 by 
32-39 /*, truncate or rounded at both ends, or sometimes narrowed 
below, slightly or not constricted at the septum ; wall chestnut- 
brown, thin, about i /*, darker and somewhat thicker above, 3-5 /* ; 
pedicel very short, usually not seen. 
38. PucciNiA Cenchri Diet. & Holw. Bot. Gaz. 24: 28. 1897. 
On Poaceae: 
Cenchrus echinatus L., Guanica, Feb. 3, 5jp; Mona 
Island, Dec. 20, 21, <5277. 
Cenchrus viridis Spreng., Guanica, Feb. i, 55/; Guayama, 
Dec. 4, 5338. 
The host of the collection from Mona Island was first pro- 
nounced by Prof. A. S. Hitchcock to be C. viridis. Upon learn- 
ing from Dr. N. F. Britton that this host was not known from 
